package com.itzh.netty.webscoket;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;

import java.time.LocalDateTime;

public class MyTextWebSocketFrameHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {
    @Override
    protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
        System.out.println("服务器端收到消息 = "+msg.text());
        //回复浏览器
        ctx.channel().writeAndFlush(new TextWebSocketFrame("服务器时间"+ LocalDateTime.now()
        +"-----"+msg.text()));
    }

    //当web 客户端连接后 触发方法
    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        //id 表示唯一的值
        System.out.println("handlerAdded 被调用"+ctx.channel().id().asLongText());
        System.out.println("handlerAdded 被调用"+ctx.channel().id().asShortText());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println("HandlerRemoved 被调用 "+ctx.channel().id().asLongText());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("异常发生"+cause.getMessage());
        ctx.close();
    }
}
